Fix TabCapturePerformanceTest in official builds and re-enable the test.

Changed the test to look for the preexisting
RenderWidget::didCommitAndDrawCompositorFrame event. Got rid of
useless TestFrameTickSW event query since nobody is producing that
event any more.

BUG=377089

Review URL: https://codereview.chromium.org/323843004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@276227 0039d316-1c4b-4281-b951-d872f2087c98
2 files changed